Fork of Polished World Map
This example displays a world map with country boundaries, graticules, and a sphere outline, rendered as SVG. The visualization uses the Natural Earth projection via `d3.geoNaturalEarth1` and `d3.geoPath` to draw geographic features, while `d3.geoGraticule` generates the grid lines. Country landmasses are filled in teal, with interiors drawn as a mesh stroke. Data comes from the World Atlas TopoJSON file, processed with `topojson.feature` and `topojson.mesh`. The React component structure separates data loading (`useData`) from the presentation (`Marks`), with styling defined in CSS.